Change language charset in .fla/ .swf file

Currently the language is English but I would like to expand in other languages.

From the template developer I got this message:

All text entries, including button labels, form alerts, all messages and text blocks are loaded from the xml file. So anything can be changed to any language. But note this .fla file includes by default Latin I charset, so any other language charset needed must be included first in the fla.